One Week, Two Tests, and End Behavior

Stop the presses – I was out sick last week! But at least with on-line study I didn’t have to bring the teacher a note from the doctor and at my age I didn’t have to convince my parents that I was too sick to study. By Monday I was back at it, fueled by test anxiety and dreams of greatness.

I did much better this time on my chapter test, mostly due to over-preparation. I did not realize that the test materials included the Periodic Table, a List of Equations, and the Standard Reduction Potentials. On my next test I will have to strike a medium between the extremes of over-kill and under-prep but for now I’m enjoying the small victory.

Another test that I passed was a day of substitute teaching four levels of algebra at a local rural high school. In preparation, I observed the teacher for a day and met with him twice to create the lesson plans. I taught 6 classes, answered questions, gave 2 tests, fixed laptops, ate lunch in 20 minutes, calmed down some rowdies, and learned a lot about quadratic equations. Watching the students, I felt sympathetic when I recognized some of my own testing extremes. At the end of the day I had many more questions about teaching than I had in the morning.

My favorite concept of the day was End Behavior. This is the question: For any given function, what does ‘Y’ do when ‘X’ approaches positive and negative infinity? It’s difficult to imagine the ends without knowing the middle, especially when most functions, like life, are not linear. So next week I’ll stay in the middle, prepare for the next tests, and leave infinity to the mathematicians.

Next Up: The Ties That Bind

Will You Be My Neighbor?

My new glasses arrived this week. Let’s hope my spelling improves.

This week’s lesson was The Periodic Table. And with that sentence, I just lost most of my readers. Those of you still with me – imagine the vague underlying sense of discontent that haunted the chemists all through the 1860’s as they kept discovering elements, 63 in all, but without hope of reaching a greater understanding.

I used to work for a scientist who often said “Simple is best, unless it’s wrong.” Dimitri Mendeleev created the first Periodic Table simply and correctly by arranging the elements in ascending order of atomic mass. In doing so, he unlocked a powerful secret about those 63 and all that came after. The elements had a pattern and it was a pattern of eights. 

Just like my new glasses, Mendeleev’s list made everything in the world a little clearer. The elements suddenly looked like neighbors, grouped together by common interests and behavior. Holes in the list were simply houses under construction waiting for germanium, gallium, and scandium to arrive.

This begged a much larger question: What other neighborhoods were out there and just how large was this city?

Next Up: Inside The Great City


With an eager heart and a full cup of coffee I watched the on-line Orientation today. I remember sending my daughter to her first day of school, all excitement and promise and new shoes.

My feelings of optimism faded when the online voice brightly explained that they have a 50% pass rate. He went on to remind us that there is no course refund after 30 days, the cost of retakes is 200$ each, and there is no spellcheck feature. He added that most of the failures occur in the written sections and that a fail in that section prevents a pass overall. The phrase “do not underestimate” was used several times.

Another reason for this blog has emerged : so I can get used to writing. It will be a while before I give up spell check, however. I used it 7 times while writing this post.

Counterintuitively, at the end of this presentation we are encouraged to start applying for teaching positions now.

Next: Course Materials and Dreams